Method and means for blood transfusion



r 1,630,248 3 N. c. AGUILAR METHOD AND MEANS FOR BLOOD TRANSFUSION Filed June 23, 1926 INVENTOR.

A TTORNE Y.

Patented Ma 31, 1927. h

' wetter-ed c0516 AGUILA-R} 0F mhxieo cm "Y; Mexico. v 1

"presenjt ihventidn relates to' app aretus It Will? b'e'tiiiders tood in the chhsicle 'ation of this invention that thetraiisfu'sie'n s ho ulclbe, directlyamt without "delay; and it is enei" o'f 'the Objects Ofthe invention to p 'e'v ide' aii' apparatus hieh Will. permit of direct, eX editions end sanitary tr'arisf sien f'the regiilatien; or at a rate subject to close r eg fiiiethei' and"imijoi'hzhitiehjeet of the tiii ventib' i is to m'v de-q for improving 01 111'- creasing the pdtentia'lity "of the= bleed, fajsf it passes from the g ver ,t 'the'f recipient, in"

oftlieiblbo'tl is 'di'niihishecl; Still anotherz iobl'ect O'fthe invention is" to provide an appalfatuS" (if thef elzrsg Cl-J scribed which p'erm'itsthe' physician to at all times the rate atiwhichithe bl'eod 1s fiewi'ng' from fihei'giver to: thereeipienti Carrying out One oftlie salient feeturee' of my i'IiV IltlQiT, "IPrOVide e suitable mlf time" of fli icl of such naturethat: it is readily;

to' thepatient through a niiger; 'ii which" the glucose fluid is mixed Wlfll the b'l'oedet a regulated rate, and 1*p'erini't the lesultant tien't' at at rate" which I; can regulate as" clesi 'e. T f In View 'ofthe' foregoing; it s another object of the inventi n tdpi oviclea device which will permit of the mixture ajg'lueose flhiclQa-nclfblobch while the said blood is'fibW-fl ing' directly from the giver tother'ecipient,

I it

glass glbh'e '01 receptacle, zirftmigedtdhe held in inverted pe'sitien' ancl cl'oseclat the 7' .60

have capacit of 1000" cubie (llll'jl l lletel'sy dimiii-isjh'ed in diameter to" fit into at fle ible :Tile-Them c'or kis 'pro'vide'cl with tee -r;

plo yed" by hysicians for removing or 111- are opposed or oppojsitely chiectec'hse that" the flew of blood is directly fro'in. the doiief t0 the; recipiene-ehw the tube 8*is directed into the-tube 10 ih the' direction-3 f)such l daily, the donor-His placed in'a slightly higher elevation than the recipient, as is indicated by" the respective positions fof the twoneedles. The needle is inserted in the re cipient so thatthe needle i's directedwith the flow ofbloodyso, that such flow of blood in the recipient has an inductive action and tends'to draw the mixture into; the blood vessel of the recipient. Such tendency is added to by the difl'erencein elevation ofthe subjects and the factthatthe heart action 'suchflow actually aids in forcing the mix or systole of'the donor results in blood ac-L' tually being pumped, by the. healthygivers; Theart,into the bodyfof the recipientiat a point where. the efliectivegbloodpressure. is

minimum, Thus I have provided forfdiis pens ng. with pumps, syr nges or the like Wh'emby observingthe'sighttube 12, it is seen that the blood isfiowing as required,-the reservoir .3 s elevated enough to cause flu d therefromto fiow intoj the largev glass tube 10.7] Owing to the-direction of the tube 8,

ture forwardlyinto' the tubes 12, 1a andlQ The upon thejsightjtubei 12, noting carefully the color {and yiscosity of the resultant" mixture, i and making surethat no coagulation, clot-V ting, or 'uneven'mixture is flowing. Ifat any time durlng' such observation 1t is seen that the mixture is not as desired, the res-:-

ervoir is instantly lowered to diminish or 3, which I employ, is particularlysuited for l agitating the; contained fluid. By using my "improved device, a physicianmay make a blood transfusion unaided and subject to very close; observation and ;-regulation, and V v p 1 hollowmeinber atfthe end opposed to that uwithout having to depend uponfthe human ods being rathersudden and forceful; The

isinstahtly recognized. 7 I

It'will be 'apparentnow thatl llELYBfPI'O-f 9 "fvided for adding jaisuitable; food-yalue fluid,

element of a'less skilled assistant. Myim:

1 proved device and method forces the blood into the recipient 'in rhythmic pulsations {of the correct nature and gives regular and normal pulsegto'the blood vessel receiving the fluid. Thetransfusion can thus bemade'" with extreme care and with a well regulated mixture in a manner and stateto which a weakened system will tend to respond, rather than being shocked thereby; previous methsmaller in'dia eterthan the tubelO, pro

vides higher fluid, Velocity at that point, and, p

1 duit leading trom the interior of saidneck f outwardly through 'said cor'k, afiexible tube" attached to said-conduit leading fromsaid" any slight change in viscosity ofthe mixture physician at all times keeps closegwatch,

or other suitable bloodagent, to a stream of' 'blood flowing from a giver :toa recipient, (and it will also be apparentthatl have prof vided a simple, dependable and sanitary device "for carrying out the inethod, which de i vice issubject to close observation and regulation, and while Ihave'shown and described specific. constructions, arrangements of parts and specific method with a'spe'oific order of steps in the method, I do not limitmyself thereto, I mayemploy 'anyconstruction,

r n me t-pa ts,m fl dmr e f a method, coming within 'the'scopejoffthec apF;

pended; claims, without departing} I spirit of my inve'ntien; 'lVhat I' claim asnew and patentab 1. In an apparatus of "the class'idesfribeth a portable fluid receptacle subject 'ft'ofQhangef in elevation, a flexibletube leadingjffromp said receptacle, an elongated hollow'memaf85 l a miXt-ureffchamber,ja ;s'ec"n'd,

berfproviding p tube leading from [said ffiexi'ble tube-1n said hollow member-in a direction approin-' mately parallel to the'l'ongitudinalaxis'fof said elongated hollow-,member, hJOl W donoryn edle eirtendingjinto,fsaid chamber in the same general idire'ction" in- .which the" l i second tube jenters-said cl aniber,,a mixturef i conveying tube leading from'the elongated hollow member at theend opposed to} that I 'at-whi'chl said second tube 'and'needle enter,

and a recipient needle continuing said mixture conveying tube.

- 2.51am; apparatus 3 of the class described, a portable fluid receptacle subject ,to' "change 111:, elevation, a flexible tube leading from said receptacle,"anfelongatedhollow 'me'm-. ber. providing a'mixturei-chamben a second tubefleading from'said'fflexible al umin: said hollow chamber in'a "direction. a r xig, mately parallel to thelongitudinaljaxis of;

said [elongated hollow member, hollow j donor needle-extending into saidchambenn th-e same general ClHeCtlOnfllL which t -he" second tube enters said chamber, ti-"mixture conveying tube leading from the elongated mixture conveying tube, and a translucent sight tube interposedjin said: fluid convey hollow -mernber. f i V I v 3,? In an apparatus of the classdescribed,

ingtube; said' sight tube beinglof appre: ciably smaller diameter thal le fild' elongated -1 V a'portable fluid receptaclehavinga reduced neck provided with an openingysaid recep tacle beingoth-erwise entirely closed, a cork, 7

closing said Jne ck, an open; end admis-. sion'tube leading, through said; cork; Well into the interiorfof said receptacle, a con,-

Viding a mixture Chamber, a second tube leading from said flexible tube into said" hollow member in adirection normal to the longitudinal axis of said elongated hollow member, a donor needle' c'ontinuing into said 'chamberin the same general direction in which the second tube enters said chamber;

a mixture'oonveying tube leading frmnt-he 4. elongated. hollow" memben atrthe' end opfluid conveying tube; said sighttube being of appreciably.smallelgdiaineten than said 15 u elongatedhollow meinber. V v.

1 nniio so COSIOAGUIL RQ 1 

